Finding the Fourth Proportional to 2,453.06, 3,679.32 and 809.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.06 : 3,679.32 = 809.58 : x
2. Step 2: Convert to fraction form
   2,453.06/3,679.32 = 809.58/x
3. Step 3: Cross multiply
   2,453.06x = 3,679.32 × 809.58
4. Step 4: Simplify right side
   2,453.06x = 2,978,703.89
5. Step 5: Solve for x
   x = 2,978,703.89/2,453.06
6. Step 6: Final answer
   x = 1,214.28